I absolutely love EZDrummer and the expansions that I’ve bought, but I have one significant limitation with any kit I use: there’s not quite enough capacity to borrow pieces from one kit to another to create the ideal, personalized kit(s) that I need.
I mostly use the Hip Hop expansion, but it falls short on a few things; namely, snare and hi hat articulations. In that regard, I prefer the Jazz expansion that I bought the other day. The jazz expansion would probably be my ideal kit if I could just recruit a handful of sounds from my hip hop and/or electronic kit; namely, some of the kicks and snares, like the 808 kicks, the chromatic kicks, or big selection of snares/alt snares from the hip hop and electronic. It would also be cool to bring in some of the various miscellaneous sounds from the “percussion” category, or “hits” “xtra” and “FX,” or the bells and shakers from the hip hop expansion, but those kicks and snares alone, would probably have me way more content, so I could use my preferred kicks–especially the kicks, include some of the more abstract snare sounds I like, and still be able to use more realistic, dynamic snares and cymbals with my Jazz kit, and also Drumkit from Hell.
What I would really love to have, to wrap up all of these purchases into software that has everything I need from percussion, is if I could just start with my Jazz kit, or Drumkit from hell (but this is idea is a tool to use in any kit that’s possible), and just add in a pad of miscellaneous sounds that I could pull from the hip hop and electronic kits. For me, as much as an 8-part pad, like the one on the left side of the hip hop kit is about all I would need for my perfect, personalized kit. And I know with the Jazz kit in particular, there’s plenty of midi mapping space to for way more than just 8 new spots, you could have those 8 with various articulations, like the 16 pitch chromatic kick, but obviously that capacity would depend on the kit. Another factor is spots in the mixer for the add-on pad, but even if it were assigned to the kick, snare, and hi hat mixer spots, like in the hip hop kit, I could work with that, though it’s own mixer spots would be ideal.
Yes, there are some workarounds to get what I need, like opening two different EZDrummer kits in my DAW but that’s very taxing on the computer, and overly complicated.
Regardless of solutions, I think this would vastly improve EZDrummer, and it seems like a really simple concept, and I for one, would pay to have this little add-on. 
